40633253 has 2 divisors, whose sum is σ = 40633254. Its totient is φ = 40633252.

The previous prime is 40633211. The next prime is 40633261. The reversal of 40633253 is 35233604.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37736449 + 2896804 = 6143^2 + 1702^2 .

It is a cyclic number.

It is not a de Polignac number, because 40633253 - 2⁸ = 40632997 is a prime.

It is a super-2 number, since 2×40633253² = 3302122498724018, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40633273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20316626 + 20316627.

It is an arithmetic number, because the mean of its divisors is an integer number (20316627).

Almost surely, 2^40633253 is an apocalyptic number.

It is an amenable number.

40633253 is a deficient number, since it is larger than the sum of its proper divisors (1).

40633253 is an equidigital number, since it uses as much as digits as its factorization.

40633253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 26.

The square root of 40633253 is about 6374.4217776987. The cubic root of 40633253 is about 343.7904940505.

Adding to 40633253 its reverse (35233604), we get a palindrome (75866857).

The spelling of 40633253 in words is "forty million, six hundred thirty-three thousand, two hundred fifty-three".